- PDB-2pn2: CRYSTAL STRUCTURE OF A PUTATIVE OSMOTIC STRESS INDUCED AND DETOXI... -
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Basic information
Entry
Database: PDB / ID: 2pn2
Title
CRYSTAL STRUCTURE OF A PUTATIVE OSMOTIC STRESS INDUCED AND DETOXIFICATION RESPONSE PROTEIN (PSYC_0566) FROM PSYCHROBACTER ARCTICUS 273-4 AT 2.15 A RESOLUTION
Components
Uncharacterized protein
Keywords
SIGNALING PROTEIN / PUTATIVE OSMOTIC STRESS INDUCED AND DETOXIFICATION RESPONSE PROTEIN / STRUCTURAL GENOMICS / JOINT CENTER FOR STRUCTURAL GENOMICS / JCSG / PROTEIN STRUCTURE INITIATIVE / PSI-2
Function / homology
OsmC/Ohr family / OsmC/Ohr superfamily / OsmC-like protein / K homology (KH) domain / GMP Synthetase; Chain A, domain 3 / K homology domain-like, alpha/beta / 2-Layer Sandwich / Alpha Beta / Osmotically inducible protein OsmC
Function and homology information
Biological species
Psychrobacter arcticus (bacteria)
Method
X-RAY DIFFRACTION / SYNCHROTRON / MAD / Resolution: 1.95 Å
BIOMOLECULE: 1 THIS ENTRY CONTAINS THE CRYSTALLOGRAPHIC ASYMMETRIC UNIT WHICH CONSISTS OF 1 CHAINS. ... BIOMOLECULE: 1 THIS ENTRY CONTAINS THE CRYSTALLOGRAPHIC ASYMMETRIC UNIT WHICH CONSISTS OF 1 CHAINS. SEE REMARK 350 FOR INFORMATION ON GENERATING THE BIOLOGICAL MOLECULE(S). SIZE EXCLUSION CHROMATOGRAPHY WITH STATIC LIGHT SCATTERING SUPPORTS THE ASSIGNMENT OF A DIMER AS THE SIGNIFICANT OLIGOMERIZATION STATE.
Remark 999
SEQUENCE THE CONSTRUCT WAS EXPRESSED WITH A PURIFICATION TAG MGSDKIHHHHHHENLYFQG.
Resolution: 1.95→36.466 Å / Num. obs: 8085 / % possible obs: 76.3 % / Redundancy: 4 % / Rmerge(I) obs: 0.039 / Rsym value: 0.039 / Net I/σ(I): 11.4
Reflection shell
Diffraction-ID: 1
Resolution (Å)
Redundancy (%)
Rmerge(I) obs
Mean I/σ(I) obs
Num. measured all
Num. unique all
Rsym value
% possible all
1.95-2.06
3.9
0.222
3.2
3471
883
0.222
58.3
2.06-2.18
4
0.116
5.8
4145
1031
0.116
71.5
2.18-2.33
3.9
0.103
6.4
2491
632
0.103
46.5
2.33-2.52
4
0.077
8.2
5052
1256
0.077
99.8
2.52-2.76
4
0.058
10.7
3280
823
0.058
69.8
2.76-3.08
4
0.043
13.7
4275
1058
0.043
99.7
3.08-3.56
4
0.039
13.4
3245
811
0.039
86.4
3.56-4.36
3.9
0.033
17.7
2349
601
0.033
74.9
4.36-6.17
3.9
0.031
18.2
2501
646
0.031
99.5
6.17-36.47
3.5
0.02
30.7
1190
344
0.02
93.4
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Phasing
Phasing
Method: MAD
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Processing
Software
Name
Version
Classification
NB
MolProbity
3beta29
modelbuilding
SHELX
phasing
REFMAC
5.2.0019
refinement
SCALA
datascaling
PDB_EXTRACT
2
dataextraction
MAR345
CCD
datacollection
MOSFLM
datareduction
CCP4
(SCALA)
datascaling
autoSHARP
phasing
Refinement
Method to determine structure: MAD / Resolution: 1.95→36.466 Å / Cor.coef. Fo:Fc: 0.954 / Cor.coef. Fo:Fc free: 0.931 / SU B: 7.676 / SU ML: 0.111 / TLS residual ADP flag: LIKELY RESIDUAL / Cross valid method: THROUGHOUT / σ(F): 0 / ESU R: 0.252 / ESU R Free: 0.201 Stereochemistry target values: MAXIMUM LIKELIHOOD WITH PHASES Details: 1. HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS. 2. A MET-INHIBITION PROTOCOL WAS USED FOR SELENOMETHIONINE INCORPORATION DURING PROTEIN EXPRESSION. THE OCCUPANCY OF THE SE ATOMS IN THE ...Details: 1. HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS. 2. A MET-INHIBITION PROTOCOL WAS USED FOR SELENOMETHIONINE INCORPORATION DURING PROTEIN EXPRESSION. THE OCCUPANCY OF THE SE ATOMS IN THE MSE RESIDUES WAS REDUCED TO 0.75 FOR THE REDUCED SCATTERING POWER DUE TO PARTIAL S-MET INCORPORATION. 3. CL AND SO4 IONS FROM THE CRYSTALLIZATION SOLUTION ARE MODELED. 4. ATOM RECORDS CONTAIN RESIDUAL B FACTORS ONLY. 5. RESIDUES 132-136 ARE DISORDERED AND ARE NOT MODELED. 6. THE RESOLUTION SHELLS CORRESPONDING TO ICE RINGS WERE REMOVED DURING THE INTEGRATION OF THE DATA. THIS RESULTED IN LOWER COMPLETENESS. 7. THE NOMINAL RESOLUTION IS 2.15 A WITH 1570 OBSERVED REFLECTIONS BETWEEN 2.15-1.95 (59.8% COMPLETE FOR THIS SHELL) INCLUDED IN THE REFINEMENT.
Rfactor
Num. reflection
% reflection
Selection details
Rfree
0.242
393
4.9 %
RANDOM
Rwork
0.195
-
-
-
all
0.197
-
-
-
obs
0.197
8065
76.25 %
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Solvent computation
Ion probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.2 Å / Solvent model: BABINET MODEL WITH MASK
Displacement parameters
Biso mean: 35.711 Å2
Baniso -1
Baniso -2
Baniso -3
1-
-1.32 Å2
0 Å2
0 Å2
2-
-
-2.55 Å2
0 Å2
3-
-
-
3.87 Å2
Refinement step
Cycle: LAST / Resolution: 1.95→36.466 Å
Protein
Nucleic acid
Ligand
Solvent
Total
Num. atoms
1030
0
7
66
1103
Refine LS restraints
Refine-ID
Type
Dev ideal
Dev ideal target
Number
X-RAY DIFFRACTION
r_bond_refined_d
0.014
0.022
1076
X-RAY DIFFRACTION
r_bond_other_d
0.003
0.02
689
X-RAY DIFFRACTION
r_angle_refined_deg
1.631
1.959
1471
X-RAY DIFFRACTION
r_angle_other_deg
1.37
3
1708
X-RAY DIFFRACTION
r_dihedral_angle_1_deg
3.999
5
144
X-RAY DIFFRACTION
r_dihedral_angle_2_deg
30.418
24.634
41
X-RAY DIFFRACTION
r_dihedral_angle_3_deg
10.358
15
184
X-RAY DIFFRACTION
r_dihedral_angle_4_deg
12.428
15
5
X-RAY DIFFRACTION
r_chiral_restr
0.099
0.2
184
X-RAY DIFFRACTION
r_gen_planes_refined
0.006
0.02
1189
X-RAY DIFFRACTION
r_gen_planes_other
0.002
0.02
200
X-RAY DIFFRACTION
r_nbd_refined
0.182
0.2
171
X-RAY DIFFRACTION
r_nbd_other
0.142
0.2
630
X-RAY DIFFRACTION
r_nbtor_refined
0.144
0.2
551
X-RAY DIFFRACTION
r_nbtor_other
0.069
0.2
527
X-RAY DIFFRACTION
r_xyhbond_nbd_refined
0.103
0.2
55
X-RAY DIFFRACTION
r_symmetry_vdw_refined
0.097
0.2
21
X-RAY DIFFRACTION
r_symmetry_vdw_other
0.137
0.2
69
X-RAY DIFFRACTION
r_symmetry_hbond_refined
0.093
0.2
17
X-RAY DIFFRACTION
r_mcbond_it
1.647
3
729
X-RAY DIFFRACTION
r_mcbond_other
0.39
3
278
X-RAY DIFFRACTION
r_mcangle_it
2.576
5
1136
X-RAY DIFFRACTION
r_scbond_it
4.331
8
397
X-RAY DIFFRACTION
r_scangle_it
6.269
11
331
LS refinement shell
Resolution: 1.95→2.001 Å / Total num. of bins used: 20
Rfactor
Num. reflection
% reflection
Rfree
0.314
44
-
Rwork
0.25
697
-
obs
-
741
98.54 %
Refinement TLS params.
Method: refined / Origin x: 5.368 Å / Origin y: -1.96 Å / Origin z: 23.018 Å
11
12
13
21
22
23
31
32
33
T
-0.1563 Å2
0.0143 Å2
-0.0533 Å2
-
-0.1916 Å2
-0.0237 Å2
-
-
-0.2499 Å2
L
3.0018 °2
0.7331 °2
-0.8553 °2
-
2.0934 °2
-0.02 °2
-
-
2.6933 °2
S
-0.0716 Å °
0.0562 Å °
-0.177 Å °
-0.0435 Å °
0.1909 Å °
-0.1399 Å °
0.066 Å °
0.1565 Å °
-0.1192 Å °
Refinement TLS group
Selection: ALL
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